Hi - Don I have plenty of the original tubes which are all Western Electric. The box of new tubes are worth more than the transmitter!
I was told that it was Doherty. How could I tell? Thanks Dave, W3ST Secretary to the Collins Radio Association Publisher of the Collins Journal www.collinsra.com ----- Original Message ----- From: "Donald Chester" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, December 21, 2003 2:06 PM Subject: Re: [AMRadio] Re: looking for linear amplifier > > > > >From: "David Knepper" <[EMAIL PROTECTED]> > > >Jim, for your information, I have a Western Electric 451A-1 transmitter > >(250 > >watt class) that uses Doherty circuitry. It has 6 tubes in the final that > >are similar to 211 type tubes. > > > > Dave, are you sure it uses the Doherty circuit? I recall working a couple > of guys on 160 each using one of those rigs, and they told me it was > straight control grid modulation. If you run short of 211's, the rig will > run at reduced power by leaving some of the sockets empty. The problem with > that transmitter is that the audiophools have scarfed up all the surplus > 211's and tubes for the final are now expensive and hard to find. > > Don k4kyv > > _________________________________________________________________ > Tired of slow downloads? Compare online deals from your local high-speed > providers now. https://broadband.msn.com > > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio
